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Keyword - Cap snatching (KW-1157)

Definition

Protein involved in cap snatching, a process in which a cellular mRNA is cleaved few nucleotides after the 5'cap. The resulting 10- to 13-nucleotides long capped fragment serve as primer for the initiation of viral mRNA synthesis. Cap snatching is used by negative stranded RNA virus which do not encode a guanylyl transferase, like influenza or hantaviruses.

Category

Biological process

Gene Ontology

More...
GOi

cap snatching [ GO:0075526 ]

Graphical

Cap snatchingBiological process
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